Damp cleansing wipe

ABSTRACT

A disposable substantially damp cleansing article is disclosed having a cleansing composition impregnated onto a flexible substrate such as a non-woven cloth. The impregnated compositions include lathering surfactants and water, the compositions having a viscosity ranging from about 50 to about 300,000 centipoise. Amounts of water range from greater than 15% to no higher than about 40% by weight of the total article. Speed of lather formation and foam volume increases within the window of the stated viscosity and water range.

BACKGROUND OF THE INVENTION

[0001] 1. Field of the Invention

[0002] The invention concerns low-cost, easily manufacturable disposablesingle use, substantially damp, cleansing articles.

[0003] 2. The Related Art

[0004] Personal cleansing and conditioning products have traditionallybeen marketed in a variety of forms such as bar soaps, creams, lotions,and gels. These formulations have attempted to satisfy a number ofcriteria to be acceptable to consumers. These criteria include cleansingeffectiveness, skin feel, skin mildness and lather volume. Idealpersonal cleansers should gently cleanse the skin or hair, cause littleor no irritation, and not leave the skin or hair overly dry afterfrequent use.

[0005] A series of granted and pending patent applications have beenpublished by Procter & Gamble describing disposable personal cleansingproducts purportedly addressing many of the aforementioned functionalityconcerns. These products are substantially dry articles having depositedonto a woven or non-woven cloth a cleansing composition of surfactant,structurant, skin conditioning agent and other performance ingredients.The term “substantially dry” is defined in most of these documents asmaximum 10%, but in some instances as high as 15% water. Particularlypreferred levels are 5% or less. A commercial embodiment sold in theU.S. is Olay® Daily Facial Cleansing Cloths having water levels of 3-4%by weight of the total cloth article. The technology is described in thefollowing patents.

[0006] U.S. Pat. No. 5,951,991 (Wagner et al.) focuses on providing thesubstrate with a conditioning emulsion separately impregnated from thelathering surfactant onto the cloth substrate. U.S. Pat. No. 5,980,931(Fowler et al.) emphasizes impregnation of oil soluble conditioningagents. WO 99/55303 (Albacarys et al.) describes skin care activesformulated with the cleansing composition.

[0007] Manufacturing processes for these products are reported in U.S.Pat. Nos. 5,952,043 and 5,863,663, both to Mackey et al. These patentsteach use of a continuous lipid phase with a high melting waxy materialdeposited onto the wipe substrate. The material is intended to besufficiently brittle so as to be easily disrupted by low shear contact(e.g. during wiping of the skin) to readily release an internal skinconditioning phase, yet the material is required to be sufficientlytough to avoid premature release of the internal phase during the rigorsof processing. A problem with this technology is that through compromisethe continuous external lipid phase/internal polar phase is neithersufficiently robust for processing and handling nor sufficientlyreleasable under wash conditions to allow efficient release ofconditioning agent onto the skin.

[0008] More recent publications in this area include WO 01/08542 Al (Cenet al.), WO 01/08655 A1 (Phipps et al.), WO 01/08656 A1 (Smith et al.),WO 01/08657 A1 (Lorenzi et al.) and WO 01/08658 A1 (Cawkwell et al.),all to Procter and Gamble. These documents extend the wipe technology tobonded double layer substrates of contrasting textural properties. Arougher of the two sides may act as a gripping surface while the othermay be used for delivering cleansing aids. The articles are described asbeing substantially dry defined as a Moisture Retention ratio of lessthan 0.95 gms. The ratio reports weight for total non-bound liquids inthe article but is not synonymous with water content. Water levels arenot defined.

[0009] Our evaluations of dry wipes produced by the known technology hasindicated slow latherability. We attribute the problem to the relativelythick coating deposited onto the wipe substrate. Another probable sourceof the problem is the relatively low water content. A need exists for acleansing wipe of improved foamability and one which can be efficientlymanufactured.

[0010] Accordingly, it is an object of the present invention to providea disposable, cleansing product which upon contact with water rapidlylathers and generates a rich long lasting foam.

[0011] Another object of the present invention is to provide adisposable cleansing product having a cleansing composition coatableonto a flexible wiping cloth in a process that minimizes foam generationduring manufacture.

[0012] Still another object of the present invention is to provide adisposable cleansing product which may include an impregnatedcomposition allowing for improved manufacturability, better aestheticsand increased latherability.

[0013] These and other objects of the present invention will become moreapparent in light of the following summary and disclosure.

SUMMARY OF THE INVENTION

[0014] A substantially damp cleansing product is provided whichincludes:

[0015] (i) a water insoluble substrate; and

[0016] (ii) a cleansing composition impregnated onto the substrateincluding:

[0017] (a) at least one lathering surfactant present in an amountsufficient to foam;

[0018] (b) water; and

[0019]  wherein the water is present at greater than 15% by weight ofthe product, but no higher than about 40%, and the composition having aviscosity as measured on a Haake CV 20 Rheometer with 30 mm profiledparallel plates at 23° C. ranging from about 50 to about 300,000 cp.

DETAILED DESCRIPTION OF THE INVENTION

[0020] Now it has been discovered that there is a critical range ofviscosity for the impregnated cleansing composition. Below a minimumviscosity, the composition foams poorly when the dry wipe is wetted withwater by a consumer. Although not wishing to be bound by a theory, webelieve the low viscosity compositions are readily washed away by waterdown the sink and unavailable for lathering. By contrast, a too highviscosity composition cannot be quickly activated with water forlathering by a consumer. There is a delay period.

[0021] Accordingly, the compositions of the present invention will havea viscosity ranging from about 50 to about 300,000 cp (centipoise).Thickness is measured on a Haake CV 20 Rheometer with 30 mm profiledparallel plates at 23° C. A preferred viscosity range is from about 100to about 250,000 cp, more preferably from about 150 to about 100,000,even more preferably from about 200 to about 50,000 cp, and optimallyfrom about 400 to about 10,000 cp.

[0022] Another important discovery is the criticality of water levels.Substantially dry articles are poor at instantaneously generating afoam. Lathering surfactant cannot easily be activated at levels below15% water. Some substantial amount of water must be present to allow thelathering surfactants to exit more rapidly from the substrate creating afoam. Minimum levels should be greater than 15%, preferably at leastabout 20%, more preferably at least about 25% by weight of the totalcleansing product. These damp levels of water have the further advantageof giving pliability to the fabric substrate. A softer, more pleasantfeel results.

[0023] Too much water should not be present. Large amounts of waterimpart a soggy poor aesthetic feel to the product. Even moresignificant, water encourages microbial growth. Much higher levels ofpreservatives are necessary with high water systems. Preservatives arenot just a cost issue. Some consumers are hypoallergic to certain typesof preservatives. Preserved systems must continuously be monitored toensure that microbes have not mutated into strain resistant forms. Thus,maximum levels should be no higher than about 40% and preferably nohigher than about 35% by weight of the cleansing product.

[0024] An essential element of compositions according to the presentinvention is that of a lathering surfactant. By a “lathering surfactant”is meant a surfactant, which when combined with water and mechanicallyagitated generates a foam or lather. Preferably, these latheringsurfactants should be mild, which means that they must providesufficient cleansing or detersive benefits but not overly dry the skinor hair, and yet meet the lathering criteria described above.

[0025] The products of the present invention typically include at leastone lathering surfactant in an amount from about 0.5% to about 60%,preferably from about 0.75% to about 40%, and more preferably from about1% to about 20%, based on the weight of the impregnated composition.

[0026] A wide variety of lathering surfactants are useful herein andinclude those selected from the group consisting of anionic, nonionic,cationic, amphoteric and lathering surfactant mixtures thereof.

[0027] Among the anionic lathering surfactants useful herein are thefollowing non-limiting examples which include the classes of:

[0028] (1) Alkyl benzene sulfonates in which the alkyl group containsfrom 9 to 15 carbon atoms, preferably 11 to 14 carbon atoms in straightchain or branched chain configuration. Especially preferred is a linearalkyl benzene sulfonate containing about 12 carbon atoms in the alkylchain.

[0029] (2) Alkyl sulfates obtained by sulfating an alcohol having 8 to22 carbon atoms, preferably 12 to 16 carbon atoms. The alkyl sulfateshave the formula ROSO³⁻M⁺ where R is the C₈₋₂₂ alkyl group and M is amono- and/or divalent cation.

[0030] (3) Paraffin sulfonates having 8 to 22 carbon atoms, preferably12 to 16 carbon atoms, in the alkyl moiety. These surfactants arecommercially available as Hostapur SAS from Hoechst Celanese.

[0031] (4) Olefin sulfonates having 8 to 22 carbon atoms, preferably 12to 16 carbon atoms. Most preferred is sodium C₁₄-C₁₆ olefin sulfonate,available as Bioterge AS 40®

[0032] (5) Alkyl ether sulfates derived from an alcohol having 8 to 22carbon atoms, preferably 12 to 16 carbon atoms, ethoxylated with lessthan 30, preferably less than 12, moles of ethylene oxide. Mostpreferred is sodium lauryl ether sulfate formed from 2 moles averageethoxylation, commercially available as Standopol ES-2®.

[0033] (6) Alkyl glyceryl ether sulfonates having 8 to 22 carbon atoms,preferably 12 to 16 carbon atoms, in the alkyl moiety.

[0034] (7) Fatty acid ester sulfonates of the formula: R¹CH(SO³⁻M+)CO₂R²where R¹ is straight or branched alkyl from about C₈- to C₁₈, preferablyC₁₂ to C₁6, and R² is straight or branched alkyl from about C₁ to C₆,preferably primarily C₁, and M+ represents a mono- or divalent cation.

[0035] (8) Secondary alcohol sulfates having 6 to 18, preferably 8 to 16carbon atoms.

[0036] (9) Fatty acyl isethionates having from 10 to 22 carbon atoms,with sodium cocoyl isethionate being preferred.

[0037] (10) Dialkyl sulfosuccinates wherein the alkyl groups range from3 to 20 carbon atoms each.

[0038] (11) Alkanoyl sarcosinates corresponding to the formulaRCON(CH₃)CH₂CH₂CO₂M wherein R is alkyl or alkenyl of about 10 to about20 carbon atoms and M is a water-soluble cation such as ammonium,sodium, potassium and trialkanolammonium. Most preferred is sodiumlauroyl sarcosinate.

[0039] (12) Alkyl lactylates wherein the alkyl groups range from 8 to 12carbon atoms, with sodium lauroyl lactylate sold as Pationic 138C®available from the Patterson Chemical Company as the most preferred.

[0040] (13) Taurates having from 8 to 16 carbon atoms, with cocoylmethyl taurate being preferred.

[0041] Nonionic lathering surfactants suitable for the present inventioninclude C₁₀-C₂₀ fatty alcohol or acid hydrophobes condensed with from 2to 100 moles of ethylene oxide or propylene oxide per mole ofhydrophobe; C₂-C₁₀ alkyl phenols condensed with from 2 to 20 moles ofalkylene oxides; mono- and di- fatty acid esters of ethylene glycol suchas ethylene glycol distearate; fatty acid monoglycerides; sorbitan mono-and di- C₈-C₂₀ fatty acids; and polyoxyethylene sorbitan available asPolysorbate 80 and Tween 80® as well as combinations of any of the abovesurfactants.

[0042] Other useful nonionic surfactants include alkyl polyglucosides,saccharide fatty amides (e.g. methyl gluconamides) as well as long chaintertiary amine oxides. Examples of the latter category are:dimethylododecylamine oxide, oleyldi(2-hydroxyethyl)amine oxide,dimethyloctylamine oxide, dimethyldecylamine oxide,dimethyltetradecylamine oxide, di(2-ydroxyethyl)tetradecylamine oxide,3-didodecyloxy-2-hydroxypropyldi(3-hydroxypropyl)amine oxide, anddimethylhexadecylamine oxide.

[0043] Amphoteric lathering surfactants useful for the present inventioninclude aliphatic secondary and tertiary amines, preferably wherein thenitrogen is in a cationic state, in which the aliphatic radicals can bestraight or branched chain and wherein one of the radicals contains anionizable water solubilizing group such as carboxy, sulphonate,sulphate, phosphate or phosphonate. Illustrative substances arecocamidopropyl betaine, cocamphoacetate, cocamphodiacetate,cocamphopropionate, cocamphodipropionate, cocamidopropylhydroxysultaine, cetyl dimethyl betaine, cocamidopropyl PG-dimoniumchloride phosphate, coco dimethyl carboxymethyl betaine, cetyl dimethylbetaine and combinations thereof.

[0044] For purposes of the present invention, the total of all latheringsurfactants to water may be in a weight ratio ranging from about 1:10 toabout 5:1, preferably from about 1:4 to about 4:1, more preferably fromabout 1:3 to about 3:1, and optimally from about 1:2 to about 2:1.

[0045] A necessary element of the present invention is that of a waterinsoluble substrate. By “water insoluble” is meant the substrate doesnot dissolve or readily break apart upon immersion in water. A widevariety of materials can be used as the substrate. The followingnon-limiting characteristics are desirable: (i) sufficient wet strengthfor use, (ii) sufficient abrasivity, (iii) sufficient loft and porosity,(iv) sufficient thickness, and (v) appropriate size.

[0046] Non-limiting examples of suitable insoluble substrates which meetthe above criteria include non-woven substrates, woven substrates,hydro-entangled substrates, air entangled substrates and the like.Preferred embodiments employ non-woven substrates since they areeconomical and readily available in a variety of materials. By non-wovenis meant that the layer is comprised of fibers which are not woven intoa fabric but rather are formed into a sheet, particularly a tissue. Thefibers can either be random (i.e., randomly aligned) or they can becarded (i.e. combed to be oriented in primarily one direction).Furthermore, the non-woven substrate can be composed of a combination oflayers of random and carded fibers.

[0047] Non-woven substrates may be comprised of a variety of materialsboth natural and synthetic. By natural is meant that the materials arederived from plants, animals, insects or byproducts. By synthetic ismeant that the materials are obtained primarily from various man-madematerials or from material that is usually a fibrous web comprising anyof the common synthetic or natural textile-length fibers, or mixturesthereof.

[0048] Non-limiting examples of natural materials useful in the presentinvention are silk fibers, keratin fibers and cellulosic fibers.Non-limiting examples of keratin fibers include those selected from thegroup consisting of wool fibers, camel hair fibers, and the like.Non-limiting examples of cellulosic fibers include those selected fromthe group consisting of wood pulp fibers, cotton fibers, hemp fibers,jute fibers, flax fibers, and mixtures thereof.

[0049] Non-limiting examples of synthetic materials useful in thepresent invention include those selected from the group consisting ofacetate fibers, acrylic fibers, cellulose ester fibers, modacrylicfibers, polyamide fibers, polyester fibers, polyolefin fibers, polyvinylalcohol fibers, rayon fibers and mixtures thereof. Examples of some ofthese synthetic materials include acrylics such as Acrilan®, Creslan®,and the acrylonitrile-based fiber, Orion®; cellulose ester fibers suchas cellulose acetate, Arnel®, and Acele®; polyamides such as Nylons(e.g., Nylon 6, Nylon 66, and Nylon 610); polyesters such as Fortrel®,Kodel®, and Dacron®; polyolefins such as polypropylene, polyethylene;polyvinyl acetate fibers and mixtures thereof.

[0050] Non-woven substrates made from natural materials consist of websor sheets most commonly formed on a fine wire screen from a liquidsuspension of the fibers.

[0051] Substrates made from natural materials useful in the presentinvention can be obtained from a wide variety of commercial sources.Non-limiting examples of suitable commercially available paper layersuseful herein include Airtex®, an embossed airlaid cellulosic layerhaving a base weight of about 71 gsy, available from James RiverCorporation, Green Bay, WI; and Walkisoft®, an embossed airlaidcellulosic having a base weight of about 75 gsy, available fromWalkisoft U.S.A., Mount Holly, N.C.

[0052] Non-woven substrates made from synthetic material useful in thepresent invention can also be obtained form a wide variety of commercialsources. Non-limiting examples of suitable non-woven layer materialsuseful herein include HFE-40-047, an apertured hydroentangled materialcontaining about 50% rayon and 50% polyester, and having a basis weightof about 43 grams per square yard (gsy), available from Vertec, Inc.,Walpole, Mass.; HEF 140-102, an apertured hydro-entangled materialcontaining about 50% rayon and 50% polyester, and having a basis weightof about 56 gsy, available from Veratec, Inc., Walpole, Mass.; Novenet®149-191, a thermo-bonded grid patterned material containing about 69%rayon, about 25% polypropylene, and about 6% cotton, and having a basisweight of about 100 gsy, available from Veratec, Inc., Walpole, Mass.;HEF Nubtex® 149-801, a nubbed, apertured hydro-entangled material,containing about 100% polyester, and having a basis weight of about 70gsy, available from Veratec, Inc. Walpole, Mass.; Keybak® 951V, a dryformed apertured material, containing about 75% rayon, about 25% acrylicfibers, and having a basis weight of about 43 gsy, available fromChicopee Corporation, New Brunswick, N.J.; Keybak® 1368, an aperturedmaterial, containing about 75% rayon, about 5% polyester, and having abasis weight of about 39 gsy, available from Chicopee Corporation, NewBrunswick, N.J.; Duralace® 1236, an apertured, hydro-entangled material,containing about 100% rayon, and having a basis weight from about 40 gsyto about 115 gsy, available from Chicopee Corporation, New Brunswick,N.J.; Duralace® 5904, an apertured, hydro-entangled material, containingabout 100% polyester, and having a basis weight from about 40 gsy toabout 115 gsy, available from Chicopee Corporation, New Brunswick, N.J.;Sontaro® 8868, a hydro-entangled material, containing about 50%cellulose and about 50% polyester, and having a basis weight of about 60gsy, available from Dupont Chemical Corp.

[0053] Most preferred as a substrate for purposes of this invention arenon-woven substrates, especially blends of rayon/polyester and ratios of10:90 to 90:10, preferably ratios of 20:80 to 80:20, optimally 40:60 to60:40 by weight. A most useful substrate is a 70:30 rayon/polyesternon-woven wipe article.

[0054] Anywhere from 1 to 100, preferably from 5 to 50 single wipes maybe stored within a dispensing pouch or container, preferably a moistureimpermeable pouch or container. During storage and between dispensing,the pouch or container is preferably resealable. Single wipe containingpouches may also be employed.

[0055] The water insoluble substrates of the present invention cancomprise two or more layers, each having a different texture andabrasiveness. The differing textures can result from the use ofdifferent combinations of materials or from the use of a substratehaving a more abrasive side for exfoliation and a softer, absorbent sidefor gentle cleansing. In addition, separate layers of the substrate canbe manufactured to have different colors, thereby helping the user tofurther distinguish the surfaces. Although the present invention may besuitable for substrates with two or more layers having different textureand abrasiveness, the best effectiveness of the damp system can be foundwith single or multiple layered substrates of identical construction.

[0056] The amount of impregnating composition relative to the substratemay range from about 20:1 to 1:20, preferably from 10:1 to about 1:10and optimally from about 2:1 to about 1:2 by weight.

[0057] Impregnating compositions of the present invention may alsoinclude silicones of a volatile and non-volatile variety. Typicalvolatile silicones are the cyclomethicones commercially available as DowCorning 244, 245, 344 and 345. Linear volatile dimethicones are alsosuitable. Non-volatile silicones include polydimethyl siloxanes of aviscosity greater than 2 centistoke and silicone copolyols also known asdimethicone copolyol for which Dow Corning 193 is a commercial source.Amounts of the silicones may range from about 0.01 to about 20,preferably from about 0.5 to about 3% by weight of the impregnatedcomposition.

[0058] Cationic conditioning agents in monomeric and polymeric type arealso useful for purposes of this invention. Examples of the polymerictype include: cationic cellulose derivatives, cationic starches,copolymers of a diallyl quaternary ammonium salt and an acrylamide,quaternized vinylpyrrolidone vinylimidazole polymers polyglycol aminecondensates, quaternized collagen polypeptide, polyethylene imine,cationized silicon polymer (e.g. Amodimethicone), cationic siliconpolymers provided in a mixture with other components under the trademarkDow Corning 929 (cationized emulsion), copolymers of adipic acid anddimethylaminohydroxypropyl diethylenetriamine, cationic chitinderivatives, cationized guar gum (e.g. Jaguar C-B-S, Jaguar C-17, JaguarC-16 etc. manufactured by the Celanese Company), quaternary ammoniumsalt polymers (e.g. Mirapol A-15, Mirapol AD-1, Mirapol AZ-1, etc.,manufactured by the Miranol Division of the Rhone Poulenc Company). Mostpreferred is polyquaternium-11 available as Luviquat® PQ 11 sold by theBASF Corporation.

[0059] Examples of monomeric cationic conditioning agents are salts ofthe general structure:

[0060] wherein R¹ is selected from an alkyl group having from 12 to 22carbon atoms, or aromatic, aryl or alkaryl groups having from 12 to 22carbon atoms; R², R³, and R⁴ are independently selected from hydrogen,an alkyl group having from 1 to 22 carbon atoms, or aromatic, aryl oralkaryl groups having from 12 to 22 carbon atoms; and X⁻ is an anionselected from chloride, bromide, iodide, acetate, phosphate, nitrate,sulfate, methyl sulfate, ethyl sulfate, tosylate, lactylate, citrate,glycolate, and mixtures thereof. Additionally, the alkyl groups can alsocontain ether linkages, or hydroxy or amino group substituents (e.g. thealkyl groups can contain polyethylene glycol and polypropylene glycolmoieties). Preferably the anion is phosphate, especially preferred ishydroxy ethyl cetyl dimonium phosphate available as Luviquat® Mono CPfrom the BASF Corporation.

[0061] Amino silicones quats may similarly be employed. Most preferredis Silquat AD designated by the CTFA as Silicone Quaternium 8, availablefrom Siltech Inc.

[0062] Amounts of each cationic agent may range from about 0.05 to about5%, preferably from about 0.1 to about 3%, optimally from about 0.3 toabout 2.5% by weight of the impregnated composition.

[0063] Water-binding agents are preferably included in compositions ofthe present invention. Water soluble binding agents such as polyhydricalcohols are particularly preferred. Typical polyhydric alcohols includeglycerol (also known as glycerin), polyalkylene glycols and morepreferably alkylene polyols and their derivatives, including propyleneglycol, dipropylene glycol, polypropylene glycol, polyethylene glycoland derivatives thereof, sorbitol, hydroxypropyl sorbitol, hexyleneglycol, 1,3-butylene glycol, 1,2,6-hexanetriol, ethoxylated glycerol,propoxylated glycerol and mixtures thereof. For best results thewater-binding agent is preferably glycerin. Also particularly preferredare polyethylene glycol (average molecular weight ranging from about 200to about 2,000,000, with PEG-9M and PEG-14M being preferred) andhexylene glycol. In certain types of compositions the latter agent maybe inappropriate and therefore polyols other than hexylene glycol shouldbe utilized. The amount of water-binding agent may range anywhere fromabout 0.5 to about 50%, preferably between about 1 and about 30% byweight of the composition.

[0064] The disposable, single use personal care cleansing products ofthe present invention are manufactured by separately or simultaneouslyadding onto or impregnating into a water insoluble substrate thecleansing composition including lathering surfactants and conditioners,wherein the resulting product is substantially dry. By “separately” ismeant that the surfactants and the conditioners can be addedsequentially, in any order without first being combined together. By“simultaneously” is meant that the surfactants and conditioners can beadded at the same time, with or without first being combined together.

[0065] The surfactant, conditioners, water-binding agents and any otheroptional ingredients can be added onto or impregnated into the waterinsoluble substrate by any means known to those skilled in the art. Forexample, addition can be through spraying, laser printing, splashing,dipping, soaking, or coating.

[0066] Except in the operating and comparative examples, or whereotherwise explicitly indicated, all numbers in this descriptionindicating amounts of material ought to be understood as modified by theword “about”.

[0067] The term “comprising” is meant not to be limiting to anysubsequently stated elements but rather to encompass non-specifiedelements of major or minor functional importance. In other words thelisted steps, elements or options need not be exhaustive. Whenever thewords “including” or “having” are used, these terms are meant to beequivalent to “comprising” as defined above.

[0068] The following examples will more fully illustrate the embodimentsof this invention. All parts, percentages and proportions referred toherein and in the appended claims are by weight unless otherwiseillustrated.

EXAMPLE 1

[0069] A formula typical of the present invention for impregnation ontoa rayon/polyester substrate was formulated with the followingcomponents. TABLE I Example 1 Formula INGREDIENT WEIGHT % DeionizedWater 25.45  Glycerin 25.00  Cocamidopropyl Betaine (Tegobetaine F ®,30% Active) 18.23  Sodium Lauroyl Sarcosinate (Hamposyl L-30 ®, 18.23 30% Active) Decyl Polyglucoside (Plantareen 2000 N ®, 50% Active) 11.15 Silicone Quaternium-8 (Hanisquat AD ®, 40% Active) 0.50 Polyquaternium10 (Celquat SC-230M ®) 0.40 Fragrance 0.40 Sodium Lauroyl Lactylate(Pationic 138C ®) 0.20 Polyquaternium 4 (Celquat L-200 ®) 0.15 MethylParaben 0.15 Preservatives 0.10 Soya Sterol (Generol 122 ®) 0.01Cholesterol 0.01 Vitamin E Acetate 0.01 Vitamin A Palmitate 0.01

[0070] The formula of the Table was coated onto a substrate at 2.0 gramscoating per 2.0 grams rayon/polyester sheet (752 mm by 190 mm area).

[0071] Lather quality/stability comparisons were conducted on thisExample. A modified Ross-Miles foam tester was employed. The toweletteslather parameters were measured on 3 cloths in 200 ml of water. Resultsare reported in the Table below. TABLE II Lather Quality/StabilityComparison Lather Sample Quality/Stability* Lather Height (ml) Olay ®Daily Facial 3 400 Cleansing Cloths** Dove ® Daily Facial 3 550Cleansing Cloths Example 1 (coated on   4.5 500 towelette)

[0072] A consumer study was also conducted on two of the towelette typesdescribed above. The study was based on response by 118 panelists.Results are reported in Table III below. TABLE III Consumer Test %Preferred Example 1 Formula Olay ® Daily Facial Property (Coated onTowelette) Cleansing Cloths Having a creamy lather 72 28 Lathers quickly68 32 Leaves skin feeling soft 61 39 Leaves skin feeling 59 41moisturized

[0073] Based upon the findings reported in Table III, there was asignificant preference for the Example 1 formula towelette whichincorporated 25% water. The Olay® towelette with only 3-4% water did notprovide a sufficiently creamy lather, lathered slower, left skin feelingless soft and less moisturized than the towelette of the presentinvention.

EXAMPLE 2

[0074] A series of compositions are presented under Table IV reflectiveof the present invention. These compositions are impregnated onto anon-woven polyester substrate at a 1:1 weight ratio. TABLE IV SAMPLE(Weight %) INGREDIENT A B C D E F G Hexylene Glycol 15.00  13.45  11.00 — 19.45 29.00 Butylene Glycol — 2.00 4.00 15.00 — 19.00 Water 25.00 25.00  25.00  25.00 25.00 30.00 30.00 Polyquaternium (Polymer JR 400 ®)1.00 — — — — PEG 9M (PEO-2) — —  1.00 —  1.00 Polyquaternium 4 (CelquatL-200 ®) — 0.15 — —  0.15 — — Polyquaternium 4 (Celquat L-230M ®) — 0.40— —  0.40 — — Hydroxypropyl Cellulose (Klucel GF ®) — — 1.00 — —  1.00 —Polyquaternium 7 (Merquat 2200 ®) 1.33 1.33 1.33  1.33 — — —Cocamidopropyl Betaine (Tegobetaine F ®; 17.60  17.60  17.60  17.6020.00 20.00 20.00 30% Active) Decyl Polyglucoside (Plantaren 2000N ®;11.00  11.00  11.00  11.00 15.00 — — 50% Active in Water) Sodium LauroylSarcosinate (Hamposyl L- 17.60  17.60  17.60  17.60 20.00 20.00 30.0030 ®; 30% Active) Sodium Lauroyl Lactylate (Pationic 138C ®) 1.74 1.741.74  1.74 — — — Capric/Caprylic Triglycerides (Miglyol 812 ®) 2.50 2.502.50  2.50 — — — Silicon Quaternium-8 (Silquat AD ®; 40% 6.00 6.00 6.00 6.00 — — — Active in Water) Fragrance 1.03 1.03 1.03  1.03 — — —Glydant Plus ® Liquid (DMDM Hydantoin and 0.20 0.20 0.20  0.20 — — —Iodopropynyl Butylcarbamate in Butylene Glycol) SAMPLE (Weight %)INGREDIENT H I J K L M N Hexylene Glycol — 3.50 14.00  — — — — ButyleneGlycol — — — — — 24.30 — Glycerin 19.00  19.45  — 18.3  29.45 — 32.30Water 20.00  20.00  14.08  20.00 18.00 24.45 15.00 Polyquaternium(Polymer JR 400 ®) 1.00 — — — — — — PEG 9M (PEO-2) — — — — — — —Polyquaternium 4 (Celquat L-200 ®) — 0.15 — —  0.15  0.15 —Polyquaternium 4 (Celquat L-230M ®) — 0.40 — —  0.40  0.40 —Hydroxypropyl Cellulose (Klucel GF ®) — 1.00  1.00  1.00 Sodium LaurethSulfate, 2 mol, 70% in water — 20.00  — — 28.00 25.00 25.00 (Steol ® CS270) Polyquaternium 7 (Merquat 2200 ®) — 1.00 —  1.00 — —  1.00Cocamidopropyl Betaine (Tegobetaine F ®; 16.12  30.00  14.07  27.0018.00 15.00 20.0  30% Active) Decyl Polyglucoside (Plantaren 2000N ®;50% Active 16.00  — 28.15  — — — — in Water) Sodium Lauroyl Sarcosinate(Hamposyl L-30 ®; 30% 14.13  — — 27.00 — — — Active) Sodium LauroylLactylate (Pationic 138C ®) 2.00 — — — — — — Capric/CaprylicTriglycerides (Miglyol 812 ®) 5.00 5.00 5.00  5.00  3.00 — — Dimethicone(D/C 200 fluid) — — — — 10.00 — Sunflowerseed oil (Cropure Sunflower) —— 20.00  — — —  5.00 Petrolatum — — 3.00 —  2.50 — — SiliconeQuaternium-8 (Silquat AD ®; 40% Active in 6.00 — — — — — Water)Fragrance 0.50 0.50 0.50  0.50  0.50  0.50  0.50 Glydant Plus ® Liquid(DMDM Hydantoin and 0.25 — 0.20  0.20 —  0.20  0.20 IodopropynylButylcarbamate in Butylene Glycol) SAMPLE (Weight %) INGREDIENT O P Q RS Hexylene Glycol 14.50  18.75  — — — Butylene Glycol — — — — — Glycerin— — 18.30 — — Water 20.00  35.00  35.00  18.30  18.30  PEG 9M (PEO-2) —— — — 1.00 Polyquaternium 4 (Celquat L-200 ®) — 0.15 — — —Polyquaternium 4 (Celquat L-230M ®) — 0.40 — — — Hydroxypropyl Cellulose(Klucel GF ®) 1.00 1.00 — — Sodium Laureth Sulfate, 2 mol, 70% in water(Steol — — — 35.00  35.00  CS ® 270) Polyquaternium 10 (Polymer JR ®400) 2.00 1.00 — 1.00 1.00 Polyquaternium 7 (Merquat 2200 ®) — — 1.001.00 — Cocamidopropyl Betaine (Tegobetaine F ®; 18.00  — 18.00  18.00  —30% Active) Decyl Polyglucoside (Plantaren 2000N ®; 50% Active in 16.00 40.00  22.00  22.00  40.00  Water) Sodium Lauroyl Sarcosinate (HamposylL-30 ®; 30% 18.00  — — — — Active) Sodium Lauroyl Lactylate (Pationic138C ®) 1.00 — — — — Capric/Caprylic Triglycerides (Miglyol 812 ®) 3.00— — — — Dimethicone (D/C 200 fluid) — — — — — Sunflowerseed oil (CropureSunflower) — 3.00 3.00 3.00 3.00 Petrolatum — 1.00 1.00 1.00 1.00Silicone Quaternium-8 (Silquat AD ®; 40% Active in 6.00 — — — — Water)Fragrance 0.30 0.50 0.50 0.50 0.50 Glydant Plus ® Liquid (DMDM Hydantoinand 0.20 0.20 0.20 0.20 0.20 Iodopropynyl Butylcarbamate in ButyleneGlycol)

EXAMPLE 3

[0075] This Example reports on impregnation composition viscosities andtheir effect upon lather properties. Three formulations were prepared.These are reported in the Table below. TABLE V SAMPLE (WEIGHT %)INGREDIENT* A B C Water 48.30 48.30 48.30 Sodium laureth sulfate, 2moles 35.00 35.00 35.00 ethoxylation, 30% in water (Steol CS-230 ® LowSalt, Stepan) Cocamidopropyl betaine, 30% in 14.70 14.70 14.70 water(Tegobetaine F ®, Goldschmidt) Sodium Chloride 2.00 0.00 1.00 HexyleneGlycol 0.00 2.00 1.00 Viscosity (cp)** 290,100 21.4 12,770

[0076] TABLE VI Lather Results Sample A Sample B Sample C Quick LatherQuick Lather Quick Lather Lather Amount Lather Amount Lather AmountPanelist 1 2 5 5 1 5 4 Panelist 2 2 4 5 1 5 5 Panelist 3 2 4 4 3 4 4Panelist 4 4 5 5 4 5 5 Panelist 5 2 3 4 3 4 4 Panelist 6 1 5 5 2 5 5Panelist 7 2 4 4 2 4 4 Average   2.14   4.29   4.57   2.29   4.57   4.43

[0077] The Panel Test results recorded in Table VI involved the SamplesA-C impregnated towelettes being wetted under running water for 3seconds. Thereafter the towelette was manipulated to generate lather.The Scale was: 5=fast (high) and 1=slow (little).

[0078] Sample A is a relatively high viscosity impregnated composition.While a satisfactory amount of lather was obtained, the generation wasslow. Sample B with a relatively thin viscosity impregnated compositionwas quick to lather but total amount was relatively low. Sample C was atowelette loaded with a mid-range viscosity composition. It created agood amount of lather and was generated in a short period of time.

[0079] The foregoing description and examples illustrate selectedembodiments of the present invention. In light thereof variations andmodifications will be suggested to one skilled in the art, all of whichare within the spirit and purview of this invention.

What is claimed is:
 1. A substantially damp cleansing productcomprising: (i) a water insoluble substrate; and (ii) a cleansingcomposition impregnated onto the substrate comprising: (a) at least onelathering surfactant present in an amount sufficient to foam; (b) water;and  wherein the water is present at greater than 15% by weight of theproduct, but no higher than about 40%, and the composition having aviscosity as measured on a Haake CV 20 Rheometer with 30 mm profiledparallel plates at 23° C. ranging from about 50 to about 300,000 cp. 2.The product according to claim 1 wherein the viscosity ranges from about100 to about 250,000 cp.
 3. The product according to claim 1 wherein theviscosity ranges from about 150 to about 100,000 cp.
 4. The productaccording to claim 1 wherein the viscosity ranges from about 400 toabout 10,000 cp.
 5. The product according to claim 1 wherein the weightratio of all lathering surfactants to water ranges from about 1:10 toabout 5:1.
 6. The product according to claim 1 wherein the at least onelathering surfactant is present in an amount from about 0.5 to about 60%by weight of total impregnated composition deposited upon the waterinsoluble substrate.
 7. The article according to claim 1 wherein thewater insoluble substrate is a sheet selected from a group consisting ofnon-woven, woven, hydro-entangled and air entangled substrates.
 8. Asubstantially damp cleansing product comprising: (i) a water insolublesubstrate; and (ii) a cleansing composition impregnated onto thesubstrate comprising: (a) at least one anionic lathering surfactantpresent in an amount sufficient to foam; (b) water; and  wherein thewater is present in an amount of at least about 20% by weight of theproduct, but no higher than about 40%, and the composition having aviscosity as measured on a Haake CV 20 Rheometer with 30 mm profiledparallel plates at 23° C. ranging from about 50 to about 300,000 cp. 9.A substantially damp cleansing product comprising: (i) a water insolublesubstrate; and (ii) a cleansing composition impregnated onto thesubstrate comprising: (a) from about 0.5 to about 60% by weight of thecomposition of at least one lathering surfactant; (b) water; and wherein the water is in an amount of at least about 20% by weight ofthe product but no higher than about 40%, and the composition having aviscosity as measured on a Haake CV 20 Rheometer with 30 mm profiledparallel plates at 23° C. ranging from about 50 to about 300,000 cp. 10.A substantially damp cleansing product comprising: (i) a water insolublesubstrate; and (ii) a cleansing composition impregnated onto thesubstrate comprising: (a) from about 0.5 to about 60% by weight of thecomposition of at least one lathering surfactant; (b) water; and wherein the water is present in an amount of at least about 25% byweight of the product, but no higher than about 40%, and the compositionhaving a viscosity as measured on a Haake CV 20 Rheometer with 30 mmprofiled parallel plates at 23° C. ranging from about 150 to about100,000 cp.